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Simplifying x2 + -2x = x + 4 Reorder the terms: -2x + x2 = x + 4 Reorder the terms: -2x + x2 = 4 + x Solving -2x + x2 = 4 + x Solving for variable 'x'. Reorder the terms: -4 + -2x + -1x + x2 = 4 + x + -4 + -1x Combine like terms: -2x + -1x = -3x -4 + -3x + x2 = 4 + x + -4 + -1x Reorder the terms: -4 + -3x + x2 = 4 + -4 + x + -1x Combine like terms: 4 + -4 = 0 -4 + -3x + x2 = 0 + x + -1x -4 + -3x + x2 = x + -1x Combine like terms: x + -1x = 0 -4 + -3x + x2 = 0 Factor a trinomial. (-1 + -1x)(4 + -1x) = 0Subproblem 1
Set the factor '(-1 + -1x)' equal to zero and attempt to solve: Simplifying -1 + -1x = 0 Solving -1 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + -1x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -1x = 0 + 1 -1x = 0 + 1 Combine like terms: 0 + 1 = 1 -1x = 1 Divide each side by '-1'. x = -1 Simplifying x = -1Subproblem 2
Set the factor '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4Solution
x = {-1, 4}
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